Rockwell Automation 1753-DNSI DeviceNet Safety Scanner for GuardPLC Controllers - Manual (Page 85)

1 Publication 1753-UM002A-EN-P - July 2005
Chapter
10
Monitor Status
To assist you in monitoring the status of devices on the DeviceNet
Safety network, the DeviceNet Safety Scanner provides:
• LED status indicators
• an alphanumeric status display.
You can also monitor the status of HSP, DeviceNet Safety and standard
connections, and the DeviceNet interface via connection status bits
and the corresponding GuardPLC application signals.
LED Status Indicators The scanner has 3 LEDs which allow you to monitor module,
DeviceNet network, and High Speed Protocol (HSP) status.
LED Color/State Description
Module
Status
Off No power.
Green, On Operating under normal conditions.
Green, Flashing Device is Idle.
Red, Flashing A recoverable fault exists.
Red, On An unrecoverable fault exists.
Red/Green, Flashing Self-tests in progress or the device needs
commissioning due to configuration or unique node
identifier missing, incomplete, or incorrect.
Network
Status
Off Device is not online or may not have DeviceNet network
power.
Green, On Device is online; one or more connections are
established.
Green, Flashing Device is online; no connections established.
Red, Flashing Communication timeout.
Red, On Communication failure. The device has detected an
error which has prevented network communication.
Red/Green, Flashing The SNN is being set.